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# Free 2nd grade math video lessons

This is a collection of free math videos for 2nd grade, showing varied exercises for each topic. The videos match Math Mammoth Grade 2 curriculum but will also work no matter which curriculum you follow (in other words, the videos don't rely on you having Math Mammoth curriculum).

These videos are usable for students, teachers, and parents. You can use them...

• To learn these topics yourself (if you're a student for example, or an adult needing a refresher)
• As lesson plans for teaching these topics. Often, one video from below can be made into several lessons with students.

Please choose a topic from the list. The chapters refer to Math Mammoth Grade 2 curriculum.

## Chapter 1: Some Old, Some New

Review: add and subtract whole tens to/from 2-digit numbers (review lesson for early 2nd grade)

Even & odd numbers

Doubling

One-half of a number

## Chapter 2: Telling time/clock

The minutes – telling the time to the nearest five minutes

Telling time: "past" and "till"

How many hours pass? – elapsed time in whole hours

## Chapter 3: Addition and Subtraction Facts Within 0-18

Difference, subtraction, and "How many more" additions

Number rainbow & fact families with 11

Number rainbow & fact families with 12

Number rainbow & fact families with 13

Number rainbow & fact families with 14

## Chapter 4: Regrouping in Addition

Add a 2-digit number and a single-digit number mentally – no regrouping

Regrouping with tens

Add three or four single-digit numbers mentally

## Chapter 5: Fractions and geometry

Rectangles and squares and geometric patterns

Easy fractions

Comparing fractions visually

## Chapter 6: Place value and three-digit numbers

Add and subtract multiples of 100 (mental math)

Mental math: Add and subtract multiples of ten

Bar graphs and pictographs

## Chapter 7: Measurement

Measure length to the nearest centimeter

Measuring length to the nearest half-inch

Meters and kilometers

## Chapter 8: Regrouping in Addition and Subtraction

Regrouping 10 tens as one hundred

Regrouping twice in addition (3 digit numbers)

Regrouping in subtraction, parts 1 and 2 (with 2-digit numbers)

Regrouping in subtraction, part 3 – includes word problems with Mathy and Giganto (mammoth mascots)

Mental subtraction, parts 1 and 2 – strategies for mental subtraction

Regrouping one hundred as 10 tens in subtraction

Regrouping one hundred as 10 tens in subtraction: word problems and puzzles

## Chapter 9: Money

Dollar-amounts

Making change (money lesson)

Counting up to make change

## Chapter 10: Exploring Multiplication

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